2x Boxed Mullard Mitcham E88CC GtBritain ~ Rare Special Red Valvo Editions ~ Maxi DigitalTested+Gain/Noise ~ HolyGrail Linear Holographic Liquid Rich Tone Refined Warm Classic Polish ~ 6922 CCa CV2492 Rode K2/NTK + AT-4060 Tube Mics

an audiophile darling! vintage mullard, a best-of classic, top sonic echelon audio tube, e88cc 6922 gold pin w/ gt britain codes

elegant collectibles that will only go up in value! revered long life, premium metallurgy, and low noise rich playback qualities

these limited edition red series are sought after, w/ special quality, known for improved cathodes, durability + higher tolerances

this pristine pair is also digitally tested for unparalleled accuracy, w/ gain readings, noise factor, and transconductance gm

legendary liquid holographic sound reproduction, w/ precision bass, lush harmonics, and incredible resolving vocal realism

this pair of mitcham editions will be high resolution + more linear in response, than blackburns warmth and bass dynamic

ssilky smooth detail reveal, great for a variety of musical genres, including '60s / '70s / '80s, all w/ old school vinyl-style polish

+ less analytical than german variety, these are quite 3-dimensional, and thicker than some telefunken w/ hollow thin mids

these are long life 10k-hour rugged 6dj8 ecc88 upgrades, all w/ frame-grid even/odd harmonics! see attached data/sheets

tune-up, tweak, or transform your tone, harmonics, distortion, measured feedback, articulation, warmth, and system definition

take listening playback experiences to a higher level, w/ live-concert delineation of instruments, vocals, acoustics + percussion

elevate spatial sound reproduction across more music and genre types, w/ richer bass depth, and a more classic textured resolve

one of the best instrument/percussion/vocal/singer upgrades over telefunken for rode k2 ntk + audio technica at-4060 mics!

whether its a preamp, stereo, tube mic, dac, or hifi setup, upgrade definition + add luminous fidelity to 6922 / 6dj8 circuits

aesthetix Io phono stage, avalon compressor, audible Illusions pre, audio technica at-4060 tube mic, rode k2 / ntk mics, audio notes, audio research vt200, audio horizons phono, arc ph-5 phono, air tight, blue mics, akai reel tape recorder, arc ls-15 line, ear acute one, bat vk-30, bat vk-3ix preamp, blue circle bc21.1 conrad johnson et5 / ct6, conrad johnson 16lsII / 17lsII preamp, cat sl-1 mark III, counterpoint magnum opus 1 preamp, cary, climate, dodd audio line stage pre amp, decca Integrated amp, einstein, eastern electric minimax cd player, ear, herron 6-kora hermes II tube dac, herron vtsp-2 preamp, earmax, herron 3a, lamb, Lector, manley chinook, musical fidelity, manley steelhead, reader, music hall 25.2 / 25.3, peachtree nova, pathos integrated amp, raysonic cd, scott nixon dac, sonic frontiers line 2, supratek cortese preamp, sunfire classic vac tube control center, pathos classic one / mkIII, vac, woo audio wa3, zande

ECC88 6DJ8 E88CC E188CC CV5358 M3624 CV2492 6N11 V50064 8416 7308 6922WA CV4108 CV5358 CV4110 CV4111 PCC88 7DJ8

2x old stock mullard mitcham gt britain e88cc gold in, rare red label special editions (best-of selected+upgraded)

authentic r2/r5 codes visible w/ coin base, nice silkscreens! includes boxes, carefully curated audiophile classics!

full mutual conductance (digital test) for gain/noise/gm, pristine balance + leak/short/gas/life/sound checks (phono grade)

our secondary high power output re-test measures the entire linear curve (eg-ip), and applies up to 250v in full wave

+ undergoes a complimentary refurbish and deoxit process ~ one of a kind value-added quality control

give several sessions (up to 150+ hours) w/ your amps voltage to fully break-in / cure

this ensures the sound stage opens up sonically, and stabilizes w/ no muted qualities leftover

ships well packed worldwide! priority/express also available

authentic vintage hifidelity audiophile preamp / mic / rectifier / power tube curation